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Inventor

Otto Knotek

Inventor
Aachen, DE

Overview

4→
Patents
1978–1989
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B23Kprimary
B23KSoldering or unsoldering30%
C22CAlloys30%
C23CCoating metallic material20%
H01JElectric discharge tubes or discharge lamps10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
4,871,434'Process for equipment to coat tools for machining and forming techniques with mechanically resistant layers'19894,231,793'Nickel-base alloy'19804,228,223'Wear and corrosion resistant nickel-base alloy'19804,118,254'Wear and corrosion resistant nickel-base alloy'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1980Patents assigned to EUTECTIC CORP (2)· patent assignee history
1978–1989Based in Aachen, DE· patent location history
1980Patents assigned to METALLGESELLSCHAFT AG (1)· patent assignee history
1989Patents assigned to LEYBOLD HERAEUS GMBH & CO KG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EUTECTIC CORP21978–1980
LEYBOLD HERAEUS GMBH & CO KG11989
METALLGESELLSCHAFT AG11980
Locations
LocationPatentsSpan
Aachen, DE41978–1989